Allow me to waste your time.

Flow is the latest in the line of Hexxeh’s hugely popular ChromiumOS builds. Flow is the most exciting version yet, bringing even more hardware support, an auto-updater, webcam support and an improved application menu & directory. All this, requires only a 2GB USB drive (download size is 327MB)

Here is a review article listing a clutch of Chrome extensions that should ease its adoptions among web developers. Have not tried these on Mac OS X, of course, but would be interested in any comments from those who have.

Firefox is the browser of choice for most designers and developers in part because of the vast selection of add ons that are available. While Chrome does not offer anywhere close to as many extensions (yet), there are still a number that can be very handy for designers and developers.